Top 5 Air Purifiers for Bedrooms Written by: Ellie Sundali Updated: 2025-06-12 Read time: 9 minutes You spend most of your day in your bedroom, sleeping or even working from home these days. If you’re sleeping or working in an unhealthy space with pollutants in the air, then you’re at risk of developing diseases and other health concerns. One of the best things to help you sleep is an air purifier that uses a HEPA filter to trap harmful air particles and activated carbon to adsorb odors, smoke, and chemicals. An air purifier’s benefits include reduced allergies, sleep help with low noise distractions, smoke particle reduction, odor elimination, and dust removal. While at least 40 million Americans suffer from more than 70 different sleep disorders, it’s crucial to find a cost-effective solution. Many air purifiers offer low budget options and include features such as sleep modes to reduce distractions in your bedroom while sleeping. When wondering how much sleep you need, you should know that at least 7 hours is necessary for proper cognitive functioning and overall wellness. Ensuring a quality night’s sleep and clean air in your bedroom will significantly improve your mental and physical health. In fact, air purifiers with a pink noise feature, such as the Alen BreatheSmart 45i, are a wise choice. According to WebMD, pink noise reduces distracting sounds that can interrupt your sleep, including loud talking, someone snoring, and even slamming doors. Pink noise instead provides low, relaxing background noise, not only helping you fall asleep faster, but also improving the depth of your sleep. Ultimately, choosing an air purifier that uses pink noise will allow you and your family to get the necessary rest needed to help you all feel more rested the coming day. Table of Contents Alen BreatheSmart 45i $429.00 Buy Now Pros B4-Pure Filter Medical Grade H13 True HEPA layer that captures 99.99% bacteria, aerosolized viruses, and airborne particles larger than 0.1 micron. Incredibly quiet and tuned to generate a soothing pink noise for better rest. Cons Cost Noise level 23-49 dB Dimensions H 25″ x W 15″ x D 8.5″ Weight 15 lbs CADR (Smoke) 194 CADR (Dust) 207 CADR (Pollen) 230 Coverage Up to 1,600 ft² every hour Fan speed 4 Settings Filters Medical-grade H13 HEPA Filter Power consumption 1.1 to 50 watts Warranty Forever Guarantee (with Product Registration & Active Air Filter Subscription) The Alen BreatheSmart 45i Air Purifier is a sleek and sophisticated air purifier that can clean bedrooms up to 800 square feet in size every 30 minutes. It’s True HEPA filter can remove airborne particles including allergens, dust, orders, pet dander, bacteria, and mold spores. It also comes with a HEPA Silver filter, which helps kill airborne bacteria, germs, viruses, and more. Additionally, the Alen BreatheSmart 45i’s Laser Smart Sensor can not only detect airborne particles, but also automatically adjusts to your environment. With four fan speed options, its WhisperMax Technology allows you to sleep peacefully. Moreover, its LED color display allows you and your loved ones to check the air quality at a glance. Austin Air Healthmate Bedroom Machine (HM402) $1,029.99 Buy Now Pros Cons Noise level 50-66 dB Dimensions 23″ x 14.5″ x 14.5″ Weight 53 lbs cfm Coverage up to 1500 ft² Fan speed 3 Fan Speeds Filters Anti Microbial Filter Power consumption 56 to 132 watts If you or a loved one suffers from a sleep-related problem, the Austin Air Bedroom Machine Air Purifier is a wise choice. Be confident that you will not only sleep better, but also continuously breathe clean air. Its True medical-grade HEPA filter eliminates up to 99.97 percent of all airborne particles larger than 0.3 microns. This includes dust, pet dander, pollen, gases, and other allergens. With three speed settings for its fan, the Austin Air Bedroom Machine air purifier boasts a 360-degree intake system and a five-stage filtration system. Additionally, its High Efficiency Gas Arrestance (HEGA) carbon cloth absorbs gases, chemicals, bacteria and other viruses. With 15 pounds of carbon, this unit will do the job – even if it does so noisily. It’s recommended that the filter be changed once every five (5) years under normal conditions, and more often under harsh air conditions. RabbitAir BioGS 2.0 (SPA-550A) $369.95 Buy Now Pros 24/7 lifetime technical support Energy Star-certified It covers 625 square feet Cons One-color option: White Noise level 22.8-48.6 dB Dimensions 22.2″ x 16.6″ x 9.8″ Weight 16.8 lbs. CADR (Smoke) 136 CADR (Dust) 148 CADR (Pollen) 160 Coverage up to 550 ft² Fan speed 3 Fan Speeds Filters Activated Carbon Filter Power consumption 5 to 39 watts Warranty 5 year limited warranty The Rabbit Air BioGS 2.0 air purifier cleans bedrooms up to 625 square feet twice every hour. As an Energy Star-rated air purifier, the Rabbit Air BioGS 2.0 is very quiet. It also comes with a four-stage filtration system, washable pre-filter, and childproof feature, which pauses the air purifier’s operation when you remove the front panel. It also comes with a five-year warranty as well as 24/7 lifetime support. Sharp Plasmacluster Ion (KC850U) $349.99 Buy Now Pros Cons Noise level 22-51 dB Dimensions 21.3″ x 15.1″ x 8.2″ Weight 11.0 lbs CADR (Smoke) 167 CADR (Dust) 171 CADR (Pollen) 188 Coverage up to 1,253 ft² Fan speed 3 Fan Speeds Filters Carbon filter Power consumption N/A Warranty 1 Year Limited Warranty The Sharp Plasmsacluster Ion Air Purifier comes with a high-efficiency HEPA filter and 15 pounds of activated Carbon to eliminate odors and harmful chemicals in the bathroom. The unit’s three-stage filtration system includes a long-life True HEPA filter and Activated Carbon filter, which captures up to 99.97 percent of airborne particles as small as 0.3 microns. With a coverage area of 259 square feet, the Sharp Plasmacluster Ion air purifier is whisper quiet and has a Plasmacluster Express Clean mode, which provides an extra boost of cleanness. Additionally, the Sharp Plasmacluster Ion air purifier comes with a washable pre-filter for larger airborne particles, which helps extend the overall life of your filters. Coway Airmega AP-1512HHS $239.99 Buy Now Pros Smart and energy-efficient It covers 325 square feet WiFi Compatible Coway IoCare App True HEPA filter captures 99.97 percent of airborne pollutants as small as 0.3 microns Cons Replacement filters are pricey One-color option Noise level 24.4-53.8 dB Dimensions 18.3″ x 16.8″ x 9.6″ Weight 12.34 lbs CADR (Smoke) 234 cfm CADR (Dust) 248 cfm CADR (Pollen) 232 cfm Coverage up to 1,748 ft² per hour Fan speed 5 Settings Filters Bipolar Device Power consumption 80 watts Warranty 1 Year Limited Warranty The Coway Airmega Air Purifier expertly cleans the air in bedrooms up to 325 square feet. This energy-efficient air purifier includes both a True HEPA filter and Activated Charcoal filter, which captures airborne particles including pollen and other allergens. The Coway Airmega also comes with a washable and permanent pre-filter to catch particles larger than0.3 microns. Its Coway IoCare mobile App allows you to monitor the air quality indoor and outdoor. You can also use the app to control speed, use smart control mode, get filter notifications, and much more. Additionally, the air purifier works with Alexa, comes with a pollution sensor, which shows indoor air quality in real-time, and has three fan speeds as well as an auto mode. Choosing the Right Air Purifier for Your Bedroom Coverage When choosing an air purifier, it’s important to select one with the right coverage for your bedroom size. For larger bedrooms, you’ll need a unit that can handle more square footage. For example, the Austin Air Healthmate covers up to 1,500 square feet, making it ideal for larger spaces or open-concept rooms. For medium-sized bedrooms, consider air purifiers like the Alen BreatheSmart 45i, which cleans up to 800 square feet. For smaller rooms, units like the RabbitAir BioGS 2.0 (covers up to 625 square feet) or Coway Airmega AP-1512HHS (covers up to 325 square feet) will be a great fit. Make sure the purifier you choose matches the size of your room for optimal air quality. Concern Type The right bedroom air purifier for you will depend on your air quality concern. Do you suffer from allergies, or have pets? Consider a unit with a HEPA filter. HEPA air purifiers are best for reducing allergens, and help asthma sufferers breathe easier. They can reduce up to 99% of airborne particles as small as 0.3 microns. If your concern is odors from cooking or cleaning supplies, choose an air purifier with activated carbon that can absorb chemicals and odors in the air. If you’re looking to reduce dust in your bedroom, check out our best air purifiers for dust article. No matter your concern, there’s an air purifier that will meet all of your needs! Noise Level Having a noisy air purifier is less than ideal for a bedroom. If you’re a light sleeper, you’ll be happy to know that some air purifiers are built with noise in mind. The Alen BreatheSmart 45i, for example, has WhisperMax Technology meaning it operates nearly silently. It also emits a soothing pink noise that one study found helps people sleep 25% better. Improve Sleep and Air Quality with a Bedroom Air Purifier According to the American Psychological Association, 60% of adults claim to have sleep problems a few nights a week or more. Air quality is one of the many factors that can affect how well you sleep at night. Indoor air quality can often be worse than outdoor air, and your bedroom is no exception. Excess moisture trapped near shoes, books, or other common bedroom items can create mold, dust accumulation, and stuffy air from a lack of air circulation. A recent study revealed that individuals who live in areas with high levels of air pollution are 60% more likely to sleep poorly, compared to those living with cleaner air. Indoor air pollution is caused by many factors, ranging from everyday cleaning products and construction remnants, to allergies and pet dander. If your home’s indoor air quality is poor, your sleep is likely to be less restful. This can lead to more severe issues, such as chronic sleep deprivation. Sleep deprivation decreases your ability to concentrate, weakens your immune system, and worsens your memory. The best way to improve your bedroom’s air quality and the quality of your sleep is to invest in an air purifier built to address each of your concerns. Get an air purifier for each of your bedrooms, and rest easy knowing you’re breathing the cleanest air possible. Tips and Key Takeaways ✓ Look for certified true HEPA filters and activated carbon if you want both particle and odor removal ✓ Find an air purifier that’s light and compact if you plan on traveling ✓ Check for a limited warranty ✓ Find an air purifier with a low decibel rating for quiet filtrations and minimal noise distractions ✓ Don’t use an ozone or ionizer air purifier if you want less harmful impacts to the environment ✓ Double-check the product’s dimensions to make sure it fits in your bedroom ✓ Find an air purifier with 15 pounds or more of activated carbon if you live in a wildfire zone ✓ Double-check that the air purifier covers the square footage of your office FAQs What is the difference between a HEPA filter and activated carbon in an air purifier? A HEPA (High-Efficiency Particulate Air) filter is designed to capture tiny airborne particles like dust, pet dander, pollen, and allergens. It traps particles as small as 0.3 microns with up to 99.97% efficiency. On the other hand, activated carbon filters are designed to adsorb odors, smoke, gases, and volatile organic compounds (VOCs) from the air, improving air quality by eliminating unpleasant smells and harmful chemicals. How loud are air purifiers, and will they disturb my sleep? The noise level of an air purifier is measured in decibels (dB), and many models are designed to operate quietly in a bedroom. For example, the Alen BreatheSmart 45i operates between 23-49 dB, making it incredibly quiet, with additional features like pink noise to Related Articles How Do I Detect The Source Of Indoor Odors? Is it OK to Sleep In a Bedroom with Mold? Does Washing Pillows Kill Dust Mites? 5 Best Bedroom Air Purifiers for 2025 How to Get Rid of Teenage Odor in Bedroom: Air Purifiers to the Rescue 5 Best Air Purifiers for Your Bedroom to Relieve Allergies